Yokogawa µR20000 User Manual
Page 13
2-3
SM 04P01B01-01E
Troubleshooting
2
(Dot Model)
Printer carriage does not move.
(Dot Model)
Ribbon error message
(Error: 960l)
(Dot Model)
Ribbon does not feed.
(Dot Model) Printed colors bleed.
(Dot Model)
Trend recording not normal.
(Dot Model) Print quality poor
(Dot Model)
Does not print.
Chart paper does not feed.
Internal illumination dim.
Internal illumination does not turn
ON.
The measured value is not correct
Measured values fluctuate.
Voltage measurement is good, but
temperature measurement is not
correct.
10
11
12
13
14
15
16
17
18
19
20
21
22
Whether the recorder has started, carriage load,
abnormal noises, etc.
Motor Assembly (Carriage motor)
Dot Driver PCB
Load check
Whether the gears mesh correctly.
FPC connection between Dot Driver PCB and Dot Joint
PCB
Motor Assembly (Ribbon shift motor)
Is ribbon cassette installed correctly?
Do the gears mesh correctly?
Connection between Dot Driver PCB and Dot Joint PCB
Motor Assembly (Ribbon feed motor)
Adjust the ink ribbon
Adjust the recording position
Adjusting the hysteresis
Does the ribbon feed?
Does the Carriage Assembly wire dot head operate?
Carriage Assembly
Dot Driver PCB
Is the chart installed correctly?
Do the gears mesh correctly?
Motor Assembly (Chart feed)
Pen/Dot Joint PCB
Internal illumination brightness
LED Assembly
LED Assembly
Display Assembly
Input section wiring
Noise effects
Is the Integral Time setting of the A/D converter correct?
Noise effects
Scanner PCB
Is the Reference Junction Compensation setting
correct? Is the terminal cover installed?
Input Terminal Assembly (RJC Board)
A/D Board PCB
Action
Chec
k
Adjust
Replace
Refer to
chapter 6
Description
No.
Phenomenon
Page
Item
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
6-15 23
6-14 7
6-14 7
6-14 6
6-14 7
6-14 7
6-14 7
6-4, 14 2
6-4, 14 2
6-4, 14 1
6-6, 16 14,15
6-7, 17 5
6-6, 16 13
6-14 6
6-15 10
6-15 10
6-15 14
6-15 10
2.2 Performance Test